What is it called when the 60hz line power becomes something else?

Most of the Navy's computers used to be 400Hz onboard ship. I started out as an Electrician onboard ship for 3 1/2 hellish years and had to work on the Frequency converters. BIG water cooled suckers. Then I got smart and switched over to computers. Just before I got smart and got out I was working on a system that was about half 400Hz, so when we lost 400Hz, the system would look like it was up, but wasn't. Zane | Zane H. Healy | UNIX Systems Adminstrator | | healyzh(a)ix.netcom.com (primary) | Linux Enthusiast | | healyzh(a)holonet.net (alternate) | Classic Computer Collector | +----------------------------------+----------------------------+ | For Empire of the Petal Throne and Traveller Role Playing, | | see http://www.dragonfire.net/~healyzh/ | | For the collecting of Classic Computers with info on them. | | see http://www.dragonfire.net/~healyzh/museum.html |